The HolAzAutó Basic data → Sites function records and manages the sites; POIs can be assigned to the sites, so in the Calendar function you can choose among the sites when booking a vehicle, and a vehicle staying at the site can be assigned to the site.
Follow the steps below in the HolAzAutó system:
? What are sites used for in HolAzAutó?
: Sites (telephely) are managed in Basic data → Sites; assign POIs to them so vehicles can be booked and assigned to the site (Calendar).